Scientific rationale for cos lettuce growing technology Lactuca sativa var. longifolia L. in the Forest-Steppe of Ukraine

Abstract

Scientifically validated items of growing technology disclosed for cos lettuce marketable products in the conditions of Forest-Steppe of Ukraine. Impact of environmental factors onto growth and development of Lactuca sativa var. longifolia L. plants. Sowing terms established for the seed of cos lettuce at field-seeded growing. Development parameters are quoted for plant productivity indices and marketable product indices for cos lettuce of national and foreign breeding. According to VCU characteristics a typical model has been designed for the cos lettuce indices of suitability for dissemination in Ukraine.

Keywords

• cos lettuce
• growing techniques
• phrenology phases
• growth and development
• biometry
• yield
• eco-gradient
• sowing
• maturity group
• quality
• lactucin
• regeneration
• storing